Download our free independent contractor agreement template to hire an independent contractor in Massachusetts today. Going to hire a contractor in the USA?List of all current AIA Contract Documents. Download a free Massachusetts LLC Operating Agreement (PDF, Word, Google Doc). List LLC Members, profit and tax info, and more. Ensure all terms are acknowledged before signing. Finally, submit the agreement as instructed to formalize the contract. imageSign. The general contractor claimant must record a Notice of Contract in the Registry of Deeds of the county or district where the project is located, per M.G.L. c. 1 of AIA Document A201-2017 modified, as included in the Contract Documents, the. MASSACHUSETTS PORT AUTHORITY (Authority or Massport), a body politic and corporate.